Tunnel fans are mainly used for ventilation in underground roads. Of course, they can also be used for ventilation in railway tunnels, caves, and underground engineering buildings. The annual fan in the tunnel should have talents such as waterproof, moisture-proof, and corrosion resistance, so that the talent can withstand the poor conditions in the tunnel. The shell of the tunnel fan should be the most concerned about, after all, the shell is the first line of defense to protect the inside of the fan. How is the shell of the tunnel fan installed?
① The drainage hole should be installed in the lowest position of the fan casing of the tunnel, and the drainage cover should be opened on the equipment cover.
② The tunnel fan casing is made of riveted engraved steel plate with a thickness of more than or equal to six millimeters, which is continuously reinforced and rises by flange connection.
③ All steel components such as tunnel fan casings and fan equipment hangers shall be continuously hot-dip galvanized or other equivalent treatments. The thickness of the galvanized layer shall not be less than 65 microns. How does the shell of a tunnel fan make equipment? All steel components such as fan casings and fan equipment hangers shall be continuously hot-dip galvanized or other equivalent treatments. The thickness of the galvanized layer shall not be less than 65 microns.
④ There should be no movable lifting ears for the equipment on the spot and the remaining units for assembly. Its color should be in harmony with the equipment conditions, and strive to exaggerate. The entire set of equipment should have over-voltage protection, ground protection, and lightning protection measures. The entire set of falling tunnel fans should be finished with a nominal paint, and the varnish used should have a life span of ten years under the condition that the fan is not broken, and can be banned for 1 hour without fogging in low temperature conditions greater than or equal to 250 degrees Celsius Release toxic gas.